Simon Peyton-Jones wrote:
>
> http://hackage.haskell.org/trac/haskell-prime/wiki/ViewPatterns
>
> I'm thinking of implementing it in GHC, so I'd be interested in
> feedback of the form
> - how desirable is it to have a feature of this general form?
> - can this particular proposal b
David Roundy wrote:
> Another idea is whether the syntax could be extended to indicate a failure
> to match? This would actually be useful even without views, but it's
> particularly useful with views (and especially so in the context of the
> above warnings). I'd imagine something like (with stup
> Provoked by a discussion with Don Syme, and after some helpful
> conversations at POPL, I have finally written up a proposal for adding
> "view patterns" to Haskell. We've wanted views for a long time, but they
> have never made it, into GHC at any rate. This proposal is a very
> lightweight (a
